Once made by heating wood in the absence of air, methanol (CH3OH) is now made by reacting carbon monoxide and hydrogen at high pressure:

Question

CO(g)+2H2(g)→CH3OH(l)

How many grams of CH3OH can be made from 40.0g of CO if it all reacts?

Answer 1

mols CO = grams/molar mass.
Using the coefficients in the balanced equation, convert mols CO to mols CH3OH.
Then g CH3OH = mols CH3OH x molar mass CH3OH.

This is a simple stoichiomtry problem (as opposed to a limiting reagent problem) and all of these are worked with these four steps. The first step is to write and balance the equation.

Answer 2

45.7 g